JUSTIN SARDI MD
NPI 1003443839
Radiology - Diagnostic Radiology in Boston, MA
About Justin Sardi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JUSTIN SARDI MD (NPI 1003443839) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (1022150) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and maintains a secondary practice location in Cambridge.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Justin Sardi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Justin Sardi reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts and New Hampshire enrollments
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: President & Fellows Of Harvard College
- 170 clinicians in this Medicare group
Cambridge, MA 02138
- Reassigned Medicare billing, Massachusetts enrollment
- 24 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Auburn Hospital
Acute Care Hospitals · Cambridge, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Justin Sardi's NPI number?
The NPI number for Justin Sardi is 1003443839. It was assigned to this individual provider in the NPPES registry on March 23, 2020.
Where is Justin Sardi located?
Justin Sardi practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 726-2000.
What is Justin Sardi's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Justin Sardi enrolled in Medicare?
Yes. Justin Sardi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Justin Sardi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Sardi reassigns Medicare benefits to 4 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), President And Fellows Of Harvard College (Boston, MA) and Schatzki Associates Inc. (Cambridge, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Justin Sardi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Justin Sardi accept?
Health plans from Taro Health list Justin Sardi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Justin Sardi affiliated with any hospitals?
According to CMS data, Justin Sardi is affiliated with Mount Auburn Hospital, Massachusetts General Hospital and Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Justin Sardi was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Justin Sardi, MD · NPI 1003443839
Diagnostic Radiology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 23, 2020.
## Identity
- **NPI:** 1003443839 (Entity type: Individual)
- **Enumerated:** March 23, 2020
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 1022150 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2621
- **Phone:** (617) 726-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); President And Fellows Of Harvard College (NPI 1972761807, Boston, MA); Schatzki Associates Inc. (NPI 1245384114, Cambridge, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** June 5, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1003443839) · Data from the CMS NPPES public registry.